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data-v-37ebe389><div class="container" data-v-37ebe389><div class="aside" data-v-37ebe389><div class="aside-curtain" data-v-37ebe389></div><div class="aside-container" data-v-37ebe389><div class="aside-content" data-v-37ebe389><div class="VPDocAside" data-v-37ebe389 data-v-afc4c1a1><!--[--><!--]--><!--[--><!--]--><div class="VPDocAsideOutline" data-v-afc4c1a1 data-v-2865c0b0><div class="content" data-v-2865c0b0><div class="outline-marker" data-v-2865c0b0></div><div class="outline-title" data-v-2865c0b0>On this page</div><nav aria-labelledby="doc-outline-aria-label" data-v-2865c0b0><span class="visually-hidden" id="doc-outline-aria-label" data-v-2865c0b0> Table of Contents for current page </span><ul class="root" data-v-2865c0b0 data-v-1188541a><!--[--><!--]--></ul></nav></div></div><!--[--><!--]--><div class="spacer" data-v-afc4c1a1></div><!--[--><!--]--><!----><!--[--><!--]--><!--[--><!--]--></div></div></div></div><div class="content" data-v-37ebe389><div class="content-container" data-v-37ebe389><!--[--><!--]--><main class="main" data-v-37ebe389><div style="position:relative;" class="vp-doc _articles_vue%E7%BB%84%E4%BB%B6%E5%BA%93_vue3%E7%BB%84%E4%BB%B6%E5%BA%93%E9%A1%B9%E7%9B%AE%E5%AD%A6%E4%B9%A0%E7%AC%94%E8%AE%B0%EF%BC%883%EF%BC%89%EF%BC%9A%E6%B5%8B%E8%AF%95%E4%BD%A0%E7%9A%84%E7%BB%84%E4%BB%B6" data-v-37ebe389><div><h1 id="vue3组件库项目学习笔记（三）：测试你的组件" tabindex="-1">vue3组件库项目学习笔记（三）：测试你的组件 <a class="header-anchor" href="#vue3组件库项目学习笔记（三）：测试你的组件" aria-hidden="true">#</a></h1><p>在完成一个组件之后，我们可以看到，想要测试你的组件，需要将他引入你的项目中，然后将你的组件的内容一项一项进行测试，在属性和内容多了以后，这样做是十分没用效率的，所以我们可以选用 vite 环境自带的 vitest 进行自动化测试</p><h2 id="引入测试库" tabindex="-1">引入测试库 <a class="header-anchor" href="#引入测试库" aria-hidden="true">#</a></h2><p>首先我们将我们需要的库导入到根目录中，前者是自动化测试的框架，后者是 Vue推荐的测试库，用于进行测试覆盖率的测试</p><div class="language-shell"><button class="copy"></button><span class="lang">shell</span><pre><code><span class="line"><span style="color:#A6ACCD;">pnpm add vitest happy-dom c8 -D -w </span></span>
<span class="line"></span></code></pre></div><p>之后我们在我们需要测试的地方，也就是 components 文件夹中创建一个 vite.config.ts 文件，在这个配置文件中我们引入 vue 插件之后导入测试需要的测试插件</p><div class="language-typescript"><button class="copy"></button><span class="lang">typescript</span><pre><code><span class="line"><span style="color:#676E95;">/// </span><span style="color:#89DDFF;">&lt;</span><span style="color:#F07178;">reference</span><span style="color:#89DDFF;"> </span><span style="color:#C792EA;">types</span><span style="color:#89DDFF;">=</span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">vitest</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;"> /&gt;</span></span>
<span class="line"><span style="color:#89DDFF;">import</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">{</span><span style="color:#F07178;"> </span><span style="color:#A6ACCD;">defineConfig</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">}</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">from</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">vite</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#89DDFF;">import</span><span style="color:#A6ACCD;"> vue </span><span style="color:#89DDFF;">from</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">@vitejs/plugin-vue</span><span style="color:#89DDFF;">&quot;</span></span>
<span class="line"><span style="color:#89DDFF;">export</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">default</span><span style="color:#A6ACCD;"> </span><span style="color:#82AAFF;">defineConfig</span><span style="color:#A6ACCD;">(</span></span>
<span class="line"><span style="color:#A6ACCD;">    </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#A6ACCD;">        </span><span style="color:#F07178;">plugins</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> [</span></span>
<span class="line"><span style="color:#A6ACCD;">            </span><span style="color:#82AAFF;">vue</span><span style="color:#A6ACCD;">()</span><span style="color:#89DDFF;">,</span></span>
<span class="line"><span style="color:#A6ACCD;">        ]</span><span style="color:#89DDFF;">,</span></span>
<span class="line"><span style="color:#A6ACCD;">        </span><span style="color:#F07178;">test</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#A6ACCD;">            </span><span style="color:#F07178;">environment</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">happy-dom</span><span style="color:#89DDFF;">&quot;</span></span>
<span class="line"><span style="color:#A6ACCD;">        </span><span style="color:#89DDFF;">},</span></span>
<span class="line"></span>
<span class="line"><span style="color:#A6ACCD;">    </span><span style="color:#89DDFF;">}</span></span>
<span class="line"><span style="color:#A6ACCD;">)</span></span>
<span class="line"></span></code></pre></div><p>之后我们在 components 文件夹的 package.json 中写入测试的脚本，前者可以运行测试，而后者还可以进行测试覆盖率的测试</p><div class="language-json"><button class="copy"></button><span class="lang">json</span><pre><code><span class="line"><span style="color:#A6ACCD;">  </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">scripts</span><span style="color:#89DDFF;">&quot;</span><span style="color:#A6ACCD;">: </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#A6ACCD;">    </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C792EA;">test</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">vitest</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">,</span></span>
<span class="line"><span style="color:#A6ACCD;">    </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C792EA;">coverage</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">vitest run --coverage</span><span style="color:#89DDFF;">&quot;</span></span>
<span class="line"><span style="color:#A6ACCD;">  </span><span style="color:#89DDFF;">}</span><span style="color:#A6ACCD;">,</span></span>
<span class="line"></span></code></pre></div><p>在完成了测试框架的搭建以后，我们来编写我们的测试，在之前的篇章中，我们在 button 组件中预留了 <code>__button__</code> 文件夹，我们现在在其中写入一个 button.test.ts 文件，vitest 运行之后，它会自动寻找文件夹中以</p><p><code>**.{test,spec}.{js,mjs,cjs,ts,mts,cts,jsx,tsx}</code> 为格式的文件，运行其中的测试</p><p>下面简单讲解一下 vitest 的写法：</p><ul><li><strong>describe</strong> 此函数接受名称和函数，用于将相关测试组合在一起。当您为具有多个测试点（例如逻辑和外观）的组件编写测试时，它会派上用场。</li><li><strong>it</strong> 这个函数代表被测试的实际代码块。它接受一个字符串，该字符串通常是测试用例的名称或描述</li><li><strong>expect</strong> 此函数用于测试值或创建断言，内部包含一个测试的值 ，后接一个判断的条件</li><li><strong>toBe</strong> 表示前面的结果要提供的一致才能通过测试</li></ul><div class="language-typescript"><button class="copy"></button><span class="lang">typescript</span><pre><code><span class="line"><span style="color:#89DDFF;">import</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">{</span><span style="color:#F07178;"> </span><span style="color:#A6ACCD;">describe</span><span style="color:#89DDFF;">,</span><span style="color:#F07178;"> </span><span style="color:#A6ACCD;">expect</span><span style="color:#89DDFF;">,</span><span style="color:#F07178;"> </span><span style="color:#A6ACCD;">it</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">}</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">from</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">vitest</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">;</span></span>
<span class="line"></span>
<span class="line"><span style="color:#82AAFF;">describe</span><span style="color:#A6ACCD;">(</span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">one plus oen is two</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">,</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">()</span><span style="color:#A6ACCD;"> </span><span style="color:#C792EA;">=&gt;</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#F07178;">    </span><span style="color:#82AAFF;">it</span><span style="color:#F07178;">(</span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">should be 2</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">,</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">()</span><span style="color:#F07178;"> </span><span style="color:#C792EA;">=&gt;</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#F07178;">        </span><span style="color:#82AAFF;">expect</span><span style="color:#F07178;">(</span><span style="color:#F78C6C;">1</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">+</span><span style="color:#F07178;"> </span><span style="color:#F78C6C;">1</span><span style="color:#F07178;">)</span><span style="color:#89DDFF;">.</span><span style="color:#82AAFF;">toBe</span><span style="color:#F07178;">(</span><span style="color:#F78C6C;">2</span><span style="color:#F07178;">)</span></span>
<span class="line"><span style="color:#F07178;">    </span><span style="color:#89DDFF;">}</span><span style="color:#F07178;">)</span></span>
<span class="line"><span style="color:#89DDFF;">}</span></span>
<span class="line"></span></code></pre></div><h2 id="编写测试" tabindex="-1">编写测试 <a class="header-anchor" href="#编写测试" aria-hidden="true">#</a></h2><p>因为我们的项目主要是组件库，所以我们需要在测试的时候先创建一个组件，再对组件的各项内容进行测试，所以这个时候我们就需要用到 <code>@vue/test-utils</code> 这个工具了</p><div class="language-shell"><button class="copy"></button><span class="lang">shell</span><pre><code><span class="line"><span style="color:#A6ACCD;">pnpm add @vue/test-utils -D -w   </span></span>
<span class="line"></span></code></pre></div><p>这个工具主要提供了一个<code>mount</code>方法，我们通过<code>mount</code>实例化一个组件，传入不同参数来测试组件是否符合我们的预期，例如：</p><div class="language-typescript"><button class="copy"></button><span class="lang">typescript</span><pre><code><span class="line"><span style="color:#89DDFF;">import</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">{</span><span style="color:#F07178;"> </span><span style="color:#A6ACCD;">describe</span><span style="color:#89DDFF;">,</span><span style="color:#F07178;"> </span><span style="color:#A6ACCD;">expect</span><span style="color:#89DDFF;">,</span><span style="color:#F07178;"> </span><span style="color:#A6ACCD;">it</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">}</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">from</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&#39;</span><span style="color:#C3E88D;">vitest</span><span style="color:#89DDFF;">&#39;</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#89DDFF;">import</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">{</span><span style="color:#F07178;"> </span><span style="color:#A6ACCD;">mount</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">}</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">from</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&#39;</span><span style="color:#C3E88D;">@vue/test-utils</span><span style="color:#89DDFF;">&#39;</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#89DDFF;">import</span><span style="color:#A6ACCD;"> button </span><span style="color:#89DDFF;">from</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&#39;</span><span style="color:#C3E88D;">../button.vue</span><span style="color:#89DDFF;">&#39;</span><span style="color:#89DDFF;">;</span></span>
<span class="line"></span>
<span class="line"><span style="color:#82AAFF;">describe</span><span style="color:#A6ACCD;">(</span><span style="color:#89DDFF;">&#39;</span><span style="color:#C3E88D;">test Button</span><span style="color:#89DDFF;">&#39;</span><span style="color:#89DDFF;">,</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">()</span><span style="color:#A6ACCD;"> </span><span style="color:#C792EA;">=&gt;</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#F07178;">  </span><span style="color:#82AAFF;">it</span><span style="color:#F07178;">(</span><span style="color:#89DDFF;">&#39;</span><span style="color:#C3E88D;">slot test</span><span style="color:#89DDFF;">&#39;</span><span style="color:#89DDFF;">,</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">()</span><span style="color:#F07178;"> </span><span style="color:#C792EA;">=&gt;</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#F07178;">    </span><span style="color:#C792EA;">const</span><span style="color:#F07178;"> </span><span style="color:#A6ACCD;">wrapper</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">=</span><span style="color:#F07178;"> </span><span style="color:#82AAFF;">mount</span><span style="color:#F07178;">( </span><span style="color:#A6ACCD;">button</span><span style="color:#89DDFF;">,</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#F07178;">      slots</span><span style="color:#89DDFF;">:</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#F07178;">        default</span><span style="color:#89DDFF;">:</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">&#39;</span><span style="color:#C3E88D;">Hello world</span><span style="color:#89DDFF;">&#39;</span></span>
<span class="line"><span style="color:#F07178;">      </span><span style="color:#89DDFF;">}</span></span>
<span class="line"><span style="color:#F07178;">    </span><span style="color:#89DDFF;">}</span><span style="color:#F07178;">)</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#F07178;">    </span><span style="color:#82AAFF;">expect</span><span style="color:#F07178;">(</span><span style="color:#A6ACCD;">wrapper</span><span style="color:#89DDFF;">.</span><span style="color:#82AAFF;">text</span><span style="color:#F07178;">())</span><span style="color:#89DDFF;">.</span><span style="color:#82AAFF;">toContain</span><span style="color:#F07178;">(</span><span style="color:#89DDFF;">&#39;</span><span style="color:#C3E88D;">Hello world</span><span style="color:#89DDFF;">&#39;</span><span style="color:#F07178;">)</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#F07178;">  </span><span style="color:#89DDFF;">}</span><span style="color:#F07178;">)</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#89DDFF;">}</span><span style="color:#A6ACCD;">)</span><span style="color:#89DDFF;">;</span></span>
<span class="line"></span></code></pre></div><p>以上的例子中，我们创建了一个 button 组件，然后将我们的传入一个 <code>&#39;Hello world&#39;</code> 的 slot，之后我们测试我们组件的 text 是不是包含 <code>&#39;Hello world&#39;</code> 这个内容我们在文件夹下运行 <code>pnpm run test</code> 可以看到测试成功，输出了以下的内容：</p><div class="language-shell"><button class="copy"></button><span class="lang">shell</span><pre><code><span class="line"><span style="color:#A6ACCD;">Test Files   1 passed </span><span style="color:#89DDFF;">(</span><span style="color:#A6ACCD;">1</span><span style="color:#89DDFF;">)</span></span>
<span class="line"><span style="color:#A6ACCD;">      Tests  1 passed </span><span style="color:#89DDFF;">(</span><span style="color:#A6ACCD;">1</span><span style="color:#89DDFF;">)</span></span>
<span class="line"><span style="color:#A6ACCD;">   Start at  21:05:23</span></span>
<span class="line"><span style="color:#A6ACCD;">   Duration  78ms</span></span>
<span class="line"></span></code></pre></div><p>更多的测试相关的 api 内容可以在： <a href="https://cn.vitest.dev/guide/" target="_blank" rel="noreferrer">https://cn.vitest.dev/guide/</a> 查看</p><p>关于更多 <code>@vue/test-utils</code> 的使用可以在 <a href="https://v1.test-utils.vuejs.org/zh/guides/" target="_blank" rel="noreferrer">https://v1.test-utils.vuejs.org/zh/guides/</a> 查看</p><h2 id="覆盖率测试" tabindex="-1">覆盖率测试 <a class="header-anchor" href="#覆盖率测试" aria-hidden="true">#</a></h2><p>我们为我们的组件库编写两个测试，分别测试我们的类和slot ：</p><div class="language-typescript"><button class="copy"></button><span class="lang">typescript</span><pre><code><span class="line"><span style="color:#82AAFF;">describe</span><span style="color:#A6ACCD;">(</span><span style="color:#89DDFF;">&#39;</span><span style="color:#C3E88D;">test Button</span><span style="color:#89DDFF;">&#39;</span><span style="color:#89DDFF;">,</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">()</span><span style="color:#A6ACCD;"> </span><span style="color:#C792EA;">=&gt;</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#F07178;">  </span><span style="color:#82AAFF;">it</span><span style="color:#F07178;">(</span><span style="color:#89DDFF;">&#39;</span><span style="color:#C3E88D;">slot test</span><span style="color:#89DDFF;">&#39;</span><span style="color:#89DDFF;">,</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">()</span><span style="color:#F07178;"> </span><span style="color:#C792EA;">=&gt;</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#F07178;">    </span><span style="color:#C792EA;">const</span><span style="color:#F07178;"> </span><span style="color:#A6ACCD;">wrapper</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">=</span><span style="color:#F07178;"> </span><span style="color:#82AAFF;">mount</span><span style="color:#F07178;">(</span><span style="color:#A6ACCD;">button</span><span style="color:#89DDFF;">,</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#F07178;">      slots</span><span style="color:#89DDFF;">:</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#F07178;">        default</span><span style="color:#89DDFF;">:</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">&#39;</span><span style="color:#C3E88D;">Hello world</span><span style="color:#89DDFF;">&#39;</span></span>
<span class="line"><span style="color:#F07178;">      </span><span style="color:#89DDFF;">}</span></span>
<span class="line"><span style="color:#F07178;">    </span><span style="color:#89DDFF;">}</span><span style="color:#F07178;">)</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#F07178;">    </span><span style="color:#82AAFF;">expect</span><span style="color:#F07178;">(</span><span style="color:#A6ACCD;">wrapper</span><span style="color:#89DDFF;">.</span><span style="color:#82AAFF;">text</span><span style="color:#F07178;">())</span><span style="color:#89DDFF;">.</span><span style="color:#82AAFF;">toContain</span><span style="color:#F07178;">(</span><span style="color:#89DDFF;">&#39;</span><span style="color:#C3E88D;">Hello world</span><span style="color:#89DDFF;">&#39;</span><span style="color:#F07178;">)</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#F07178;">  </span><span style="color:#89DDFF;">}</span><span style="color:#F07178;">)</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#F07178;">  </span><span style="color:#82AAFF;">it</span><span style="color:#F07178;">(</span><span style="color:#89DDFF;">&#39;</span><span style="color:#C3E88D;">class test</span><span style="color:#89DDFF;">&#39;</span><span style="color:#89DDFF;">,</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">()</span><span style="color:#F07178;"> </span><span style="color:#C792EA;">=&gt;</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#F07178;">    </span><span style="color:#C792EA;">const</span><span style="color:#F07178;"> </span><span style="color:#A6ACCD;">wrapper</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">=</span><span style="color:#F07178;"> </span><span style="color:#82AAFF;">mount</span><span style="color:#F07178;">(</span><span style="color:#A6ACCD;">button</span><span style="color:#89DDFF;">,</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#F07178;">      props</span><span style="color:#89DDFF;">:</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#F07178;">        type</span><span style="color:#89DDFF;">:</span><span style="color:#F07178;"> </span><span style="color:#89DDFF;">&#39;</span><span style="color:#C3E88D;">primary</span><span style="color:#89DDFF;">&#39;</span></span>
<span class="line"><span style="color:#F07178;">      </span><span style="color:#89DDFF;">}</span></span>
<span class="line"><span style="color:#F07178;">    </span><span style="color:#89DDFF;">}</span><span style="color:#F07178;">)</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#F07178;">    </span><span style="color:#82AAFF;">expect</span><span style="color:#F07178;">(</span><span style="color:#A6ACCD;">wrapper</span><span style="color:#89DDFF;">.</span><span style="color:#82AAFF;">classes</span><span style="color:#F07178;">())</span><span style="color:#89DDFF;">.</span><span style="color:#82AAFF;">toContain</span><span style="color:#F07178;">(</span><span style="color:#89DDFF;">&#39;</span><span style="color:#C3E88D;">ls-button-primary</span><span style="color:#89DDFF;">&#39;</span><span style="color:#F07178;">)</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#F07178;">  </span><span style="color:#89DDFF;">}</span><span style="color:#F07178;">)</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#89DDFF;">}</span><span style="color:#A6ACCD;">)</span><span style="color:#89DDFF;">;</span></span>
<span class="line"></span>
<span class="line"></span></code></pre></div><p>之后我们运行我们的 <code>pnpm run coverage</code> 脚本，可以看到，运行结果中，它会打印出一张表格</p><div class="language-shell"><button class="copy"></button><span class="lang">shell</span><pre><code><span class="line"><span style="color:#A6ACCD;"> % Coverage report from c8</span></span>
<span class="line"><span style="color:#A6ACCD;">------------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">---------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">----------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">---------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">---------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">-------------------</span></span>
<span class="line"><span style="color:#A6ACCD;">File        </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;"> % Stmts </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;"> % Branch </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;"> % Funcs </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;"> % Lines </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;"> Uncovered Line </span><span style="color:#676E95;">#s</span></span>
<span class="line"><span style="color:#A6ACCD;">------------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">---------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">----------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">---------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">---------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">-------------------</span></span>
<span class="line"><span style="color:#A6ACCD;">All files   </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">   92.85 </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">      100 </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">   28.57 </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">   92.85 </span><span style="color:#89DDFF;">|</span></span>
<span class="line"><span style="color:#A6ACCD;"> button.vue </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">   93.54 </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">      100 </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">       0 </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">   93.54 </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;"> 24-25</span></span>
<span class="line"><span style="color:#A6ACCD;"> types.ts   </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">      92 </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">      100 </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">      40 </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">      92 </span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;"> 18-19</span></span>
<span class="line"><span style="color:#A6ACCD;">------------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">---------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">----------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">---------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">---------</span><span style="color:#89DDFF;">|</span><span style="color:#A6ACCD;">-------------------</span></span>
<span class="line"></span></code></pre></div><p>它的含义是：</p><ul><li><p>%stmts是语句覆盖率（statement coverage）：是不是每个语句都执行了？</p></li><li><p>%Branch分支覆盖率（branch coverage）：是不是每个if代码块都执行了？</p></li><li><p>%Funcs函数覆盖率（function coverage）：是不是每个函数都调用了？</p></li><li><p>%Lines行覆盖率（line coverage）：是不是每一行都执行了？</p></li></ul><p>可以看到，因为我们的测试中没用测试 size 和 click函数的内容，我们的函数覆盖率是不够的，，最后一列也告诉了我们那么并没有被覆盖到，如果之后有需要我会继续补充相关我完整文档。</p><h2 id="在根目录运行所有的测试内容" tabindex="-1">在根目录运行所有的测试内容 <a class="header-anchor" href="#在根目录运行所有的测试内容" aria-hidden="true">#</a></h2><p>至此我们的组件测试包含了一个在 examples 文件夹内的引入组件的可视化测试，以及一个在 packages/components 文件夹内的自动化测试，如果我们想要运行每个内容需要经常切换文件夹，这是十分复杂的，所以我们在根目录的 package.json 中写入如下的内容：</p><div class="language-json"><button class="copy"></button><span class="lang">json</span><pre><code><span class="line"><span style="color:#A6ACCD;">  </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">scripts</span><span style="color:#89DDFF;">&quot;</span><span style="color:#A6ACCD;">: </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#A6ACCD;">    </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C792EA;">exm:dev</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">pnpm run --filter ./examples dev</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">,</span></span>
<span class="line"><span style="color:#A6ACCD;">    </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C792EA;">test</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">pnpm run --filter ./packages/components test</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">,</span></span>
<span class="line"><span style="color:#A6ACCD;">    </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C792EA;">coverage</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">pnpm run --filter ./packages/components coverage</span><span style="color:#89DDFF;">&quot;</span></span>
<span class="line"><span style="color:#A6ACCD;">  </span><span style="color:#89DDFF;">}</span><span style="color:#A6ACCD;">,</span></span>
<span class="line"></span></code></pre></div><p>这些脚本可以让我们在根目录运行执行文件夹下方的 package.json 内部的脚本，使用这些脚本，我们就可以在根目录完成我们需要的操作，至此一个包含了测试的组件库框架已经搭建好了</p></div></div></main><!--[--><!--]--><footer class="VPDocFooter" data-v-37ebe389 data-v-a54a85bd><!----><div class="prev-next" data-v-a54a85bd><div class="pager" data-v-a54a85bd><a class="pager-link prev" href="/articles/vue%E7%BB%84%E4%BB%B6%E5%BA%93/vue3%E7%BB%84%E4%BB%B6%E5%BA%93%E9%A1%B9%E7%9B%AE%E5%AD%A6%E4%B9%A0%E7%AC%94%E8%AE%B0%EF%BC%882%EF%BC%89%EF%BC%9A%E5%BC%80%E5%8F%91%E4%B8%80%E4%B8%AA%E7%BB%84%E4%BB%B6.html" data-v-a54a85bd><span class="desc" data-v-a54a85bd>Previous page</span><span class="title" data-v-a54a85bd>vue3组件库项目学习笔记（2）：开发一个组件</span></a></div><div class="has-prev pager" data-v-a54a85bd><a class="pager-link next" href="/articles/vue%E7%BB%84%E4%BB%B6%E5%BA%93/vue3%E7%BB%84%E4%BB%B6%E5%BA%93%E9%A1%B9%E7%9B%AE%E5%AD%A6%E4%B9%A0%E7%AC%94%E8%AE%B0%EF%BC%884%EF%BC%89%EF%BC%9A%E5%8F%91%E5%B8%83%E4%BD%A0%E7%9A%84%E7%BB%84%E4%BB%B6.html" data-v-a54a85bd><span class="desc" data-v-a54a85bd>Next page</span><span class="title" data-v-a54a85bd>vue3组件库项目学习笔记（4）：发布你的组件</span></a></div></div></footer><!--[--><!--]--></div></div></div></div></div><!----><!--[--><!--]--></div></div>
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